Improvement in collars for sheet-metal vessels



J. M. PATTERSON.

CoHars for Sheet Metal Vessels.

No.123,837. I PtentedFeb .20,1872.

WITNESSES: v

INVENTOR:

W p v PATENT Orrion.

JACOB M. PATTERSON, OF WOODBURY, NEW JERSEY.

IMPROVEMENT IN COLLARS FOR SHEET-METAL VESSELS.

Specification forming part of Letters Patent No. 123,837, dated February20, 1872.

Specification describing certain Improvements in Collars for Sheet-MetalVessels, invented by JACOB M. PATTERSON, of Woodhury, in the county ofGloucester and State of New Jersey.

My invention relates to the annular collars stamped or formed up each ofa single piece of sheet-metal, to be afterward seamed and soldered fast,respectively, to the bodies of sheet-metal vessels; and consists inconstructin g the upright flange, which forms the mouth of the collar,with a slightly inward taper, in combination with an inside beadproduced by tnrnin g inward the upper edge of said slightly-taperedflange; the object of my invention bcin g to adapt the mouth of thecollar for the reception of the cover or lid around over its outer side,and to give strength and rigidity to the upper edge of said mouth of thecollar, and consequently dispensing with the necessity and expense ofmaking a horizontal projection or flange around the lid or cover.

Figure 1 is a vertical central section of the collar, with the cover (indotted lines) applied Y thereto. Fi 2 is an enla-r ed vertical sectionof one side of the said collar as when first applied upon the vessel, asection of which part of the latter is indicated by dotted lines. Fig.

7 3' is a plan view of the upper side of the collar.

The collar is formed up out of a single flat circular piece of sheetmetal by pressure in suitable dies, which produce, first, the narrowflange a around the outer boundary of the flat horizontal portion 1),whereby it can be readily seamed and soldered to the upper edge of thevessel; and, second, the upright flange c for the reception over it ofthe lid or cover. It is then taken out of the dies, and the upper edgeofo turned inward by a beading-machine, so as to form the round bead dentirely on the inner side of the said upright flange c, leaving theouter side smooth and even for the reception of the lid or cover.

A circular disk of sheet metal formed up in suitable dies so as toproduce around it an outwardflaring flange to slip down tightly aroundover the flange a, (see dotted lines 6,) will form the cover without thehorizontallyprojecting flange heretofore required.

The described collar, either with or without the said lid or cover, isintended to be manufactured and put on sale for the convenience andadvantage of manufacturers of lard-cans and other sheet-metal vesselsrequiring a collar.

I claim as my invention A sheetmetal collar having the upper edge of theupright or mouth flange 0 turned inward to form a round bead, d,entirely on the inner side of said flange, substantially as and for thepurposes hereinbefore'set forth.

JACOB M. PATTERSON.

Witnesses:

BENJ. Monrson, WM. H. MoRIsoN.

